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428 BCE
Plato
Plato held that moral values are objective in the sense that they exist in a spirit-like realm beyond subjective human conventions -
384 BCE
Aristotle
Aristotle argued that virtues are good habits that we acquire, which regulate our emotions. -
354
Augustine
St. Augustine's ethic is primarily an ethic of live: it is by the will that man reaches out toward God and finally takes possession of and enjoys Him. -
1225
Thomas Aquinas
His moral philosophy involves a merger of at least two apparently disparate traditions: Aristotelian eudaimonism and Christian theology. -
Immanuel Kant
Kantian ethics emphasizes a single principle of duty. He agreed that we have moral duties to oneself and other.
